The United States and Israel carried out an attack on a bridge near the Iranian city of Qom, south of Tehran, said the deputy governor of the province. "A few minutes ago, one of the bridges on the communication lines of Qom, outside the city of Qom and in the west of the province, was attacked by American and Zionist enemy missiles," said Morteza Heydari. Train travel to and from Iran's second-largest city, Mashhad, has been canceled until further notice after Israel warned Iranians not to use railways until 17:30 GMT, local media reported, citing the regional governor. "Due to the immoral warning from the Zionist regime regarding an attack on the country's railways and as a precaution, all trains from the Mashhad railway have been canceled until further notice," said Governor Hassan Hosseini, according to several local media outlets. The Iranian news agency Mehr also reported that several military and other facilities on Hark Island were hit in the latest attack. Tehran has described this island as a "red line" in the war, given that a major portion of Iran's oil distribution to other countries is conducted through this area. In response to the recent attacks, the Iranian Revolutionary Guard also spoke out, warning that the entire region could be left without oil and gas in retaliation. "The Revolutionary Guard once again declares that if the terrorist American military crosses the red lines, our response will extend beyond the region. We are not and will not be the initiators of attacks on civilian targets; but we will not hesitate to retaliate against vile aggression against civilian facilities," they stated.